Skip to content

Windows: Codex App UI renders as transparent/blank white content area #25236

Open
Open
Windows: Codex App UI renders as transparent/blank white content area#25236
Labels
appIssues related to the Codex desktop appbugSomething isn't workingwindows-osIssues related to Codex on Windows systems

Description

@ChenJiahao1
ChenJiahao1
opened on May 30, 2026

What version of the Codex App are you using (From “About Codex” dialog)?

26.527.31326

What subscription do you have?

API

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What issue are you seeing?

The Codex desktop app UI is rendering incorrectly on Windows.

Actual behavior:

  • The left/sidebar area appears transparent and shows the Windows desktop wallpaper/icons behind the app.
  • The main content area renders as a large blank white panel.
  • The app menu/sidebar labels are visible, but the conversation/content area does not render correctly.
  • No visible error message is shown in the UI.

Expected behavior:

  • The Codex app window should render with an opaque background.
  • The sidebar and main conversation/content area should display normally.

Steps to reproduce:

  1. Open the Codex desktop app on Windows.
  2. The app window loads.
  3. Observe that the sidebar/background is transparent and the main content area is blank white.

Environment:

  • Codex App version: 26.527.31326
  • OS: Microsoft Windows NT 10.0.19045.0 x64

I attached a screenshot showing the rendering issue.

What steps can reproduce the bug?

Feedback ID: no-active-thread-019e77a3-e69e-7031-8374-07e1a4b4a4ba

What is the expected behavior?

No response

Additional information

Image

Activity

  1. ChenJiahao1
    added
    appIssues related to the Codex desktop app
    on May 30, 2026
  2. github-actions
    added
    bugSomething isn't working
    windows-osIssues related to Codex on Windows systems
    on May 30, 2026

  3. github-actions commented on May 30, 2026

    @github-actions
    github-actionsBot
    on May 30, 2026 – with GitHub Actions
    Contributor

    Potential duplicates detected. Please review them and close your issue if it is a duplicate.

    Powered by Codex Action

  4. ShannenR commented on May 30, 2026

    @ShannenR
    ShannenR
    on May 30, 2026

    What happened?

    After updating Codex, clicking the Windows Maximise button causes the left navigation/sidebar area to render transparent. Windows/File Explorer behind Codex becomes visible through the left panel.

    The top/menu bar also loses visible drop-down/menu text. The main chat area continues rendering normally.

    This appears tied to the maximized window state.

    Environment

    Codex package: OpenAI.Codex_26.527.3686.0_x64__2p2nqsd0c76g0

    Codex.exe version: 148.0.7778.179

    Windows:

    • Windows 10
    • Version: 21H2
    • Build: 19044.3086
    • Architecture: x64

    GPU:

    • NVIDIA GeForce RTX 5070 Ti
    • Driver version: 32.0.15.9649
    • Driver date: 2026-05-05

    Display:

    • Single monitor
    • Resolution: 2560x1440
    • Primary display: Yes
    • Working area: 2560x1400

    Reproduction steps

    1. Open Codex Desktop on Windows.
    2. Click the Windows Maximise button.
    3. Observe that the left sidebar becomes transparent and the top/menu bar text disappears.

    Expected behavior

    The sidebar and top/menu bar should render normally when the Codex window is maximized.

  5. ognjeeen commented on May 30, 2026

    @ognjeeen
    ognjeeen
    on May 30, 2026

    Can confirm this issue as well. It started happening after the latest update.

    For me, this issue only occurs when Codex is in fullscreen mode and focused. As soon as I switch focus away from the Codex application, the transparency issue disappears.

    Reinstalling helped for a little while, but after a few fullscreen/window resize operations, the problem returned.

    Resolution: 2560x1440

  6. Hendra827 commented on May 30, 2026

    @Hendra827
    Hendra827
    on May 30, 2026

    same problem please fix it as soon as possible

  7. LouieDan commented on May 30, 2026

    @LouieDan
    LouieDan
    on May 30, 2026

    i suffer the same problem, you guys release this new version without testing

  8. hlky commented on May 30, 2026

    @hlky
    hlky
    on May 30, 2026

    Appearance > Translucent sidebar to turn it off, but I agree it is a very ugly feature.

    Image

  9. ShannenR commented on May 30, 2026

    @ShannenR
    ShannenR
    on May 30, 2026

    Appearance > Translucent sidebar doesn't fix it for me.

  10. Hendra827 commented on May 30, 2026

    @Hendra827
    Hendra827
    on May 30, 2026

    Appearance > Translucent sidebar to turn it off, but I agree it is a very ugly feature.

    Image

    thanks work for me

  11. JustinDouglas16 commented on May 30, 2026

    @JustinDouglas16
    JustinDouglas16
    on May 30, 2026

    The fix (Appearance > Translucent sidebar) works for me. I just don't underestand why does this feature even exist

  12. GoodCrispyShark commented on May 30, 2026

    @GoodCrispyShark
    GoodCrispyShark
    on May 30, 2026

    we gave openAI so much money yet they cannot fix a ui bug

  13. simonholm commented on May 30, 2026

    @simonholm
    simonholm
    on May 30, 2026

    I can reproduce this on Windows 11.
    The issue appears when the Codex window is maximized. The sidebar and top menu bar become transparent and parts of the desktop show through. Restoring the window to a smaller size makes the issue disappear.

  14. 42153930 commented on May 31, 2026

    @42153930
    42153930
    on May 31, 2026

    Image关闭 就正常了 问题出在这

  15. jiaxucode commented on May 31, 2026

    @jiaxucode
    jiaxucode
    on May 31, 2026

    The fix (Appearance > Translucent sidebar) works for me.

    Appearance > Translucent sidebar to turn it off, but I agree it is a very ugly feature.

    Image

    The fix (Appearance > Translucent sidebar) works for me.

  16. DrunkBunny commented on Jun 1, 2026

    @DrunkBunny
    DrunkBunny
    on Jun 1, 2026

    Turning off the Translucent Sidebar doesn't work for me. Still the same.

  17. mnolz commented on Jun 2, 2026

    @mnolz
    mnolz
    on Jun 2, 2026

    Turning off the Translucent Sidebar doesn't work for me. Still the same.

    There's two toggles, one for light theme and another for dark theme. Toggling the first one did nothing for me too until I seen then tried the second toggle.

  18. simonholm commented on Jun 2, 2026

    @simonholm
    simonholm
    on Jun 2, 2026

    The workaround is to disable the "semi-transparent sidebar" setting. That said, the default enabled state may be worth reconsidering, since several users (including myself) interpreted the effect as a UI bug rather than a feature. On my system it also reduced sidebar readability.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    appIssues related to the Codex desktop appbugSomething isn't workingwindows-osIssues related to Codex on Windows systems

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions